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Telecard reader - This telecard reader can read the contain of any
telecard until 64 bytes ( 512 bits ) and display it to hyper terminal
software, using RS232 port.….(design added 05/09) [Circuit designed by
Serasidis Vasilis]
Telephone Operated Remote Control using PIC16F84a MicroController -
This design controls up to 8 devices using a PIC microcontroller (PIC16F84A)
connected to the phone line. The unique feature here is that unlike other
telephone line based remote control, this device does not need the call to
be answered at the remote end so the call will not be charged. This
device depends on number of rings given on the telephone line to(added
10/05)
The 89C51 PABx - Mohammad Shakeel from Pakistan describes how to build a
simple PABx board using the 89C51. ….(design added 06/09)
The 89Sxx learning board - Build a simple and cheap 89Sxx MCU learning board
by Tahan Prahara, Indonesia. ….(electronic schematic added 06/09)
The A-1 Robot - This Robot is created using a Radio Shack project box. I
have used many of the circuts from DiscoverCircuts.com with my ideas for AI-A-1.
The Cheap But Useful Ericsson Cell Phone Display GA628 - You used to have
an Ericsson Cell Phone GA628 and you also loved it very much, however after few years
of using, you’ve decided to change a brand new cell phone and you just threw it inside
the drawer and never touch or look on it after that?….(added 04/06)
